A Pakistani money dealer counts US dollar notes at a money market in Karachi.

Pakistan is facing its worst economic crisis in a decade, with trade and budget deficits and plunging foreign currency reserves.

As the week draws to a close the world's financial markets have had to contend with rallies and slumps unseen since the crash of 1987.

Photo by Rizwan Tabassum/AFP/Getty Images/ 17 October 2008